Perhaps you should try some spelling variations:
"lungs / diseases, instructive" » "lung / diseases, instructive", "lungs / diseases, instruction", "lungs / diseases, instructions"
"lungs / diseases, destructive" » "lung / diseases, destructive", "lungs / diseases, destruction"
"lungs / diseases, constructive" » "lung / diseases, constructive", "lungs / diseases, construction", "lungs / diseases, constructing", "lungs / diseases, constructions"
"lungs / disease, destructive" » "lung / disease, destructive", "lungs / disease, destruction"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (("lungs / diseases, instructive") OR ((((("lungs / diseases, destructive") OR ("lungs / diseases, constructive"))) OR ("lungs / disease, destructive")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"lungs / diseases, instructive\") or (((((\"lungs / diseases, destructive\") OR (\"lungs / diseases, constructive\"))) or (\"lungs / disease, destructive\"))))".
• Removing quotes may allow a broader search: (( lungs / diseases, instructive ) or ((((( lungs / diseases, destructive ) OR ( lungs / diseases, constructive ))) or ( lungs / disease, destructive )))).
• Adding a wildcard symbol may retrieve word variants: (("lungs / diseases, instructive") or ((((("lungs / diseases, destructive") OR ("lungs / diseases, constructive"))) or ("lungs / disease, destructive"))))*.